Rst docs conversion (#3496)

Rst docs conversion

docs/source/index.rst

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+:Abstract:
+	Most of today's digital design is done in HDL code (mostly Verilog or 
+	VHDL) and with the help of HDL synthesis tools.
+
+	In special cases such as synthesis for coarse-grain cell libraries or
+	when testing new synthesis algorithms it might be necessary to write a
+	custom HDL synthesis tool or add new features to an existing one. In
+	these cases the availability of a Free and Open Source (FOSS) synthesis
+	tool that can be used as basis for custom tools would be helpful.
+
+	In the absence of such a tool, the Yosys Open SYnthesis Suite (Yosys)
+	was developed. This document covers the design and implementation of
+	this tool. At the moment the main focus of Yosys lies on the high-level
+	aspects of digital synthesis. The pre-existing FOSS logic-synthesis tool
+	ABC is used by Yosys to perform advanced gate-level optimizations.
+
+	An evaluation of Yosys based on real-world designs is included. It is
+	shown that Yosys can be used as-is to synthesize such designs. The
+	results produced by Yosys in this tests where successfully verified
+	using formal verification and are comparable in quality to the results
+	produced by a commercial synthesis tool.
+
+	This document was originally published as bachelor thesis at the Vienna
+	University of Technology :cite:p:`BACC`.
+
+================================================================================
+Yosys manual
+================================================================================
+
+.. toctree::
+	:maxdepth: 2
+	:caption: Manual
+	:numbered:
+
+	CHAPTER_Intro
+	CHAPTER_Basics.rst
+	CHAPTER_Approach.rst
+	CHAPTER_Overview.rst
+	CHAPTER_CellLib.rst
+	CHAPTER_Prog.rst
+
+	CHAPTER_Verilog.rst
+	CHAPTER_Optimize.rst
+	CHAPTER_Techmap.rst
+	CHAPTER_Eval.rst
+
+.. raw:: latex
+
+	\appendix
+
+.. toctree::
+	:maxdepth: 2
+	:includehidden:
+	:caption: Appendix
+
+	appendix/CHAPTER_Auxlibs.rst
+	appendix/CHAPTER_Auxprogs.rst
+
+	appendix/CHAPTER_TextRtlil.rst
+	appendix/APPNOTE_010_Verilog_to_BLIF.rst 
+	appendix/APPNOTE_011_Design_Investigation.rst 
+	appendix/APPNOTE_012_Verilog_to_BTOR.rst
+	appendix/CHAPTER_StateOfTheArt.rst
+
+	bib
+
+.. toctree::
+	:maxdepth: 1
+	:includehidden:
+
+	cmd_ref
+